2022-04-19 15:06:09

How to improve cemented carbide mining tools

Carbide mining tools are widely used in the field of mining machinery. The mining industry requires tools that can withstand high temperatures, deformations, impacts, etc., and can drill through rock formations miles thick. In order to meet the demands of the modern mining industry, and to be able to complete jobs faster and longer, the performance and durability of tungsten carbide mining tools are crucial, and Langsun Carbide will introduce ways to improve the performance of tungsten carbide mining tools from various aspects.


I. Material selection

The basis of high-performance cemented carbide tools lies in the selection of appropriate cemented carbide and binder material compositions. Usually, tungsten carbide (WC) is the main cemented carbide and cobalt (Co) is the binder. The ratio of tungsten carbide to cobalt greatly affects the performance of the tool.

  • Tungsten Carbide (WC): Known for its hardness and wear resistance, tungsten carbide provides the necessary durability for cutting edges.

  • Cobalt binder (Co): Acts as a binder to hold the carbide particles together and give them toughness.

Optimized composition

  • Grain Size: Tungsten carbide grain size affects hardness and fracture toughness. Fine grains increase hardness, while coarse grains increase toughness.

  • Binder content: Increasing cobalt content increases toughness but decreases hardness. The optimum balance is critical to maximize performance. 

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II. Advanced Manufacturing Technology

The use of advanced manufacturing methods such as Hot Isostatic Pressing (HIP) can eliminate pores in the carbide structure and improve the density and integrity of the carbide material, thus improving performance.


III. Surface treatment and coating

  • Physical vapor deposition (PVD): Coating cemented carbide tools with hard materials such as titanium nitride (TiN) improves surface hardness, reduces friction and extends tool life.

  • Chemical surface treatment: Through techniques such as carburizing or nitriding, the surface properties of carbide tools can be altered to make them more resistant to wear and fatigue.

  • Surface Coating: Techniques such as laser cladding and thermal spraying can deposit wear-resistant materials on the carbide substrate to further increase durability.


Langsun Carbide is able to significantly improve tool performance by selecting the right grade of carbide for the customer's specific mining conditions (e.g., hard versus soft rock mining). Tailoring the material composition to the application ensures optimum efficiency and longevity.


Continuous tool improvement is critical to being able to stay ahead of the curve in an ever-evolving marketplace, and choosing better mining tools will result in better productivity and less equipment damage.